JP3207770U - Portable electric trolley - Google Patents

Abstract

A portable electric cart having a simple structure, light weight, and improved convenience of operation. A control system box 5 includes a vehicle plate 2, a main driving wheel 6 driven by a hub motor, a caster 1, and a controller for controlling the hub motor. The caster 1 is attached under the tail-side vehicle plate 2. Use of a hub motor has the advantage of light weight, reduces the requirement for the height of an object passing from below, and has high passage properties. Furthermore, the steering is controlled by the controller, and a complicated mechanical system for controlling the steering is replaced, and the structure is simple. [Selection] Figure 1

Description

  The present invention belongs to the field of carts, and specifically relates to a portable electric cart.

  A cart is an auxiliary tool that moves within a certain range and is generally used in places such as passenger planes, high-speed trains, cruise ships, and hospitals. The cart in the prior art has a complicated structure, is heavy, is difficult to mount on the vehicle, and requires physical strength of the user.

  In order to solve the drawbacks of the above technique, the present invention provides a portable electric cart.

  For this purpose, the technical solutions of the present invention are as follows.

  A portable electric carriage comprising a vehicle plate, a main driving wheel driven by a hub motor, a caster, and a controller for controlling the hub motor, wherein the two main driving wheels are provided on a front side vehicle plate. Mounted underneath, the caster is mounted under the tail side vehicle plate.

  In the above technical solution, the number of the controllers may be two, and each of the hub motors may be electrically connected to one controller.

  In the above technical solution, the number of the controllers is one, and both of the two hub motors may be electrically connected to the controllers.

  In the above technical solution, a handrail frame for pushing and pulling the vehicle plate may be attached on the vehicle plate, and a depression angle between the handrail frame and the vehicle plate may be adjustable.

  In the above technical solution, a manual operation device may be attached to the handrail frame, and the manual operation device may be electrically connected to the controller and used to control the rotation speed of the hub motor.

  In the above technical solution, a wireless receiver for receiving a signal of a remote control device is attached to the portable electric carriage, the wireless receiver is electrically connected to the controller, and the rotational speed of the hub motor is adjusted. It may be used to control.

  In the above technical solution, the controller may be mounted in a control system box, and the control system box may be fixedly mounted on a lower surface of the vehicle plate.

  In the above technical solution, the hub motor may be a double shaft hub motor.

  In the above technical solution, the hub motor is a single shaft hub motor, and each main driving wheel is attached to the bottom of the vehicle plate by a main driving wheel fixing seat, and is a circular arc surface recessed in a lower end surface of the main driving wheel fixing seat. The hub motor output shaft is adapted to the arc surface, the upper portion of the hub motor output shaft is located inside the arc surface, and a fixed piece is installed at the lower end of the hub motor output shaft, The hub motor output shaft may be tightened inside the arc surface by the fixed piece.

  The technical solution further includes a drive wheel support fixedly attached below the vehicle plate, and both ends of the drive wheel support are respectively connected to the two main drive wheel fixed seats to support the vehicle plate. May be used.

  Compared with the prior art, the portable electric cart of the present invention uses a hub motor instead of the conventional electric system, has the advantage of light weight, reduces the demand for the height of the object passing from below, High passability. Furthermore, the portable electric cart of the present invention has an advantage that the structure is simple by replacing the complicated mechanical system for controlling the steering by controlling the steering by the controller. In addition, the portable electric cart of the present invention can be controlled remotely, improving the convenience of operation.

It is a three-dimensional structure schematic diagram of the portable electric cart of the present invention. It is a side view of the portable electric trolley | bogie of this invention. It is a top view of the structure in the dotted line in FIG. It is sectional drawing of the AA surface in FIG.

  Hereinafter, a portable electric carriage of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 to 4, a vehicle wheel 2, a caster 1, a main driving wheel 6 driven by a hub motor (not shown), a drive wheel support 9 fixedly attached below the vehicle plate 2, and a hub motor 6. The two casters 1 are attached under the tail-side vehicle plate 2 and the two main driving wheels 6 are attached under the front-end vehicle plate 2.

  The number of controllers (not shown) may be two or one. When the number of controllers is two, each hub motor is electrically connected to one controller, and between the two controllers. Realizes the control (speed and steering) of the portable electric cart of the present invention by the communication protocol. When the number of controllers is one, both hub motors are electrically connected to the same controller. The The controller may be mounted in the control system box 5, and the control system box 5 is fixedly mounted on the lower surface of the vehicle body 2.

  A handrail frame 3 is mounted on the vehicle plate 2. The handrail frame 3 is located on the vehicle plate 2 on the tail side and is used to push and pull the vehicle plate 2. Preferably, the depression angle between the handrail frame 3 and the vehicle plate 2 is adjustable.

  Preferably, a manual operating device 4 is attached to the handrail frame 3, the manual operating device 4 is electrically connected to the controller, and the rotation speed of the hub motor (ie, the manual operating device 4 controls the brake and throttle of the main driving wheel). Used to control a brake device (not shown) attached to the main driving wheel.

  Preferably, a portable electric carriage may be equipped with a wireless receiver (not shown) for receiving a signal from a remote control device (not shown), the wireless receiver being electrically connected to the controller, and a hub Used to control the motor speed.

  The hub motor is a single shaft hub motor or a double shaft hub motor. As shown in FIGS. 1 to 4, when the hub motor is a single shaft hub motor, each main driving wheel 6 is attached to the bottom of the vehicle plate 2 by the main driving wheel fixing seat 8 and is recessed in the lower end surface of the main driving wheel fixing seat 8. An arcuate surface is formed, the axis of the hub motor output shaft 11 is adapted to the arcuate surface, the upper part of the hub motor output shaft 11 is located inside the arcuate surface, and the fixed piece 7 is located at the lower end of the hub motor output shaft 11. The hub motor output shaft 11 is installed and is fastened to the inside of the arc surface by the fixed piece 7. As shown in FIG. 4, the upper surface of the fixed piece 7 can form a constant arc, and the lower part of the hub motor output shaft 11 is embedded in the surface forming the arc. Alternatively, in order to achieve a better tightening effect, a cross section can be formed in the lower part of the hub motor output shaft 11, and the tightening action is realized by pushing the fixing piece 7 under the cross section.

  Both ends of the driving wheel support 9 are connected to the two main driving wheel fixing seats 8 and are used to support the vehicle plate 2. Both sides of the driving wheel support 9 are fixedly attached to the lower side of the vehicle plate 2 by connecting plates 10 respectively. The main driving wheel fixing seat 8 and the driving wheel support 9 can be integrally formed, or each main driving wheel fixing seat 8 is fixedly attached under the vehicle plate 2 directly or by a corresponding connecting plate 10. In order for the portable electric cart of the present invention to have better passability, the middle part of the drive wheel support 9 can be embedded in the control system box 5, thereby increasing the space under the vehicle plate 2.

  The portable electric trolley of the present invention has a work process in which the handrail frame 3, the manual operation device 4 or the wireless receiving device realizes forward, backward or steering of the portable electric trolley. The portable electric cart of the present invention uses a hub motor instead of the conventional electric system, has the advantage of light weight, reduces the requirement for the height of the object passing from below, and has high passage characteristics . Furthermore, the portable electric cart of the present invention has an advantage that the structure is simple by replacing the complicated mechanical system for controlling the steering by controlling the steering by the controller. In addition, the portable electric cart of the present invention can be controlled remotely, improving the convenience of operation.

  The foregoing describes the present invention by way of example, and any simple variations, modifications or other equivalent substitutions obtained by those skilled in the art without creative efforts without departing from the core of the present invention. Included in the scope of protection.

DESCRIPTION OF SYMBOLS 1 ... Caster, 2 ... Vehicle board, 3 ... Handrail frame, 4 ... Manual operation apparatus, 5 ... Control system box, 6 ... Main driving wheel, 7 ... Fixed piece, 8 ... main driving wheel fixed seat, 9 ... driving wheel support, 10 ... connection plate, 11 ... hub motor output shaft

Claims (10)

Portable electric trolley,
A car board,
A main driving wheel driven by a hub motor;
With casters,
A controller for controlling the hub motor,
The two main driving wheels are attached under the vehicle plate on the front end side,
The caster is attached to the tail side under the vehicle plate,
A portable electric cart characterized by that. The number of controllers is two;
Each of the hub motors is electrically connected to one of the controllers,
The portable electric cart according to claim 1. The number of controllers is one;
The two hub motors are both electrically connected to the controller.
The portable electric cart according to claim 1. A handrail frame for pushing and pulling the vehicle plate is mounted on the vehicle plate, and a depression angle between the handrail frame and the vehicle plate is adjustable.
The portable electric trolley | bogie of Claim 2 or 3 characterized by the above-mentioned. A manual operating device is attached to the handrail frame,
The manual operating device is electrically connected to the controller and used to control the rotation speed of the hub motor;
The portable electric cart according to claim 4. A wireless receiver for receiving a signal of a remote control device is attached to the portable electric carriage,
The wireless receiver is electrically connected to the controller and used to control the rotational speed of the hub motor;
The portable electric cart according to claim 4. The controller is mounted in a control system box;
The control system box is fixedly attached to a lower surface of the vehicle plate;
The portable electric cart according to claim 5 or 6, characterized in that The hub motor is a double shaft hub motor,
The portable electric cart according to claim 7. The hub motor is a single shaft hub motor,
Each main driving wheel is attached to the bottom of the vehicle plate by a main driving wheel fixing seat, and a concave arc surface is formed on a lower end surface of the main driving wheel fixing seat,
The axis of the hub motor output shaft fits the arc surface,
The upper part of the hub motor output shaft is located inside the arc surface,
A fixed piece is installed at the lower end of the hub motor output shaft,
The hub motor output shaft is fastened to the inside of the arc surface by the fixed piece.
The portable electric cart according to claim 7. Further comprising a drive wheel support fixedly mounted under the vehicle plate;
Both ends of the driving wheel support are connected to the two main driving wheel fixed seats, respectively, and are used to support the vehicle plate,
The portable electric cart according to claim 9.

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